no fuel tout of injectors

Asked by Feb 06, 2013 at 01:44 PM about the Chevrolet Chevy Van

Question type: Maintenance & Repair

replaced fuel pump fuel reg spider injectors vcm still will notspray i have power to one side of i njectors do not know if i need it to pulse or have constant power i have fuel pressure 60ps at rail do i need to have the vcm progamed to vichile please help at a lose

5 Answers

20,825

fuel delivery sounds ready,now you need pulse from pcm i think it emits ground to injector circuit in varied band width for varied fuel supply,initiated by CPS and cam sensors to awake the pulse signal. a test light can show pulse on a injector wire pair if needed at crank speed

34,315

What year?

2,170

yes what year, could be bad ignition module, if module blows injectors won't pulse,

1997

34,315

Security light on?

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